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Number utility tool

Random Number Generator

Generate one or more random integers within any range you choose. Set the min and max, choose how many numbers to generate, and optionally enforce uniqueness or sort the output. Everything runs in your browser instantly.

100% client sideInstant resultNo data sent

Frequently asked questions

5 answers
The generator uses JavaScript's Math.random() function, which produces pseudo-random numbers using a cryptographically seeded algorithm in modern browsers. For most everyday uses — simulations, games, random sampling — this is more than sufficient. For cryptographic security, use window.crypto.getRandomValues() instead.

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About Random Number Generation

Random number generation has applications in games, simulations, statistical sampling, lottery draws, security token generation, and testing. Browser-based generators use pseudo-random algorithms seeded by system entropy, producing results that are statistically random and suitable for most non-cryptographic purposes. This tool gives you control over the range, count, uniqueness, and ordering of the generated numbers — making it useful for everything from picking a random winner to generating test data for your application.